My Inquiry
My Account
Diodes Incorporated PI5USB2546JZHEX
- Part No.:
- PI5USB2546JZHEX
- Manufacturer:
- Diodes Incorporated
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
PI5USB2546JZHEX.pdf
- Description:
- USB SLEEP CHARGE W-QFN3030-16 T&
- Quantity:
- Payment:
- Shipping:
Inventory:3,494
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PI5USB2546JZHEX from Diodes Incorporated is a USB charging port controller and high-side power switch with integrated USB 2.0 high-speed data-line (D+/D–) analog switch, supporting BC1.2 CDP/DCP, YD/T 1591-2009 Shorted Mode, Divider-1A/2A, and DCP-1.2V charging protocols. It features a 73-mΩ (typ.) RDS(on) MOSFET, adjustable current limit up to 2.5 A (typ.), 4.5–5.5 V operating range, and load detection for S4/S5 charging control in notebook and desktop USB ports.
For engineers reviewing the PI5USB2546JZHEX datasheet, PI5USB2546JZHEX pinout, PI5USB2546JZHEX application, or PI5USB2546JZHEX equivalent, key selection criteria include BC1.2 mode compatibility, programmable current-limit thresholds (via ILIM_HI/ILIM_LO resistors), /STATUS-driven port power management, and integrated 2 Ω (typ.) DP/DM switch on-resistance with <0.25 ns propagation delay for USB 2.0 signal integrity.
Technical Context
The PI5USB2546JZHEX implements dual-function logic: a charging-mode state machine that detects and asserts D+/D– voltage signatures per BC1.2, YD/T 1591, and proprietary divider schemes; and a high-bandwidth analog switch path with <6.2 pF on-capacitance and >52 dB off-isolation at 250 MHz. Its power wake and port power management (PPM) functions are triggered via /STATUS pin assertion during load detection events.
Control is managed through three CTL pins and ILIM_SEL, enabling discrete configuration of charging mode, current-limit threshold (low/high), and load-detect sensitivity. The device integrates UVLO (4.1 V typ.), thermal shutdown (170 °C), and overcurrent protection with 5–12 ms deglitch timing, all operating within –40 °C to +125 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) | 73 mΩ (typ.) at 2 A - enables low-loss 2.5 A continuous output with <125 mW conduction loss at full load |
| Current Limit | Adjustable up to 2.5 A (typ.) via external ILIM_HI resistor - supports flexible design for wall adapters, hubs, and host ports |
| DP/DM Switch RON | 2 Ω (typ.) at 0 V - preserves USB 2.0 eye diagram integrity and meets ≤1.5% signal attenuation requirement |
| Load Detect Threshold | 650 mA (typ., RILIM_LO = 80.6 kΩ) - triggers /STATUS for S4/S5 charging enable without host CPU intervention |
| Supply Current | 270 μA (enabled), 2 μA (disabled) - minimizes standby power in always-on USB port applications |
| Operating Voltage | 4.5 V to 5.5 V - compatible with standard 5 V USB power rails including ±5% tolerance and ripple |
| Package | 16-pin ZHD (UQFN), 3 mm × 3 mm, 0.5 mm pitch - supports high-density PCB layout with exposed thermal pad for thermal management |
Pinout & Package
Package: 16-pin ZHD (UQFN), 3 mm × 3 mm, 0.5 mm pitch, exposed thermal pad internally connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power input | 5 V supply input; requires local 0.1 μF ceramic decoupling capacitor for stable switching operation |
| 2 DM_OUT | USB 2.0 data line (D–) | Connects to host controller D–; bidirectional signal path with 2 Ω on-resistance and <6.2 pF capacitance |
| 3 DP_OUT | USB 2.0 data line (D+) | Connects to host controller D+; matched with DM_OUT for differential signaling integrity |
| 4 ILIM_SEL | Current-limit mode select | Logic input selecting low-threshold (ILIM_LO) or high-threshold (ILIM_HI) current limiting; no pull-up/down required |
| 5 EN | Enable control | Active-high logic input enabling/disabling both power switch and data switches; open-drain /FAULT and /STATUS remain functional when disabled |
| 6–8 CTL1–CTL3 | Charging mode configuration | Three logic inputs setting BC1.2 CDP/DCP, Divider-1A/2A, or DCP-1.2V mode per truth table; direct tie-to-rail supported |
| 9 STATUS | Load detection indicator | Active-low open-drain output asserted during load detection - used for S4/S5 power wake and multi-port PPM coordination |
| 10 DP_IN / 11 DM_IN | Downstream USB data interface | Connect to USB connector D+/D–; support BC1.2 handshaking and high-speed data pass-through with <0.25 ns skew |
| 12 OUT | Switched 5 V output | Delivers regulated 5 V to downstream device; includes internal discharge path (500 Ω typ.) for safe hot-plug removal |
| 13 FAULT | Fault indicator | Active-low open-drain output asserted on overtemperature (>170 °C) or overcurrent - enables system-level fault logging and shutdown |
| 14 GND | Ground reference | Primary ground return; connects to exposed thermal pad for thermal dissipation and noise reduction |
| 15 ILIM_LO | Low current-limit set | Analog input accepting resistor to GND (22.1 kΩ–2.7 MΩ) to program 240 mA–100 mA load-detect and current-limit thresholds |
| 16 ILIM_HI | High current-limit set | Analog input accepting resistor to GND (16.9 kΩ–20 kΩ) to program 2.51 A–2.97 A current-limit threshold |
Key Features
| Feature | Design Value |
|---|---|
| Multi-standard charging support | Hardware-enforced BC1.2 CDP/DCP, YD/T 1591 Shorted Mode, Divider-1A/2A, and DCP-1.2V - eliminates firmware dependency for legacy and regional devices |
| Integrated USB 2.0 analog switch | 2 Ω (typ.) on-resistance, <0.25 ns propagation delay, and >52 dB cross-talk isolation - maintains USB 2.0 HS eye compliance without external buffer |
| Programmable load detection | Configurable rising/falling current thresholds (e.g., 650 mA/550 mA) via ILIM_LO resistor - enables reliable S4/S5 charging activation across varying cable/connector impedances |
| Power wake & port power management | /STATUS pin provides hardware-triggered wake event and enables coordinated power sequencing in multi-port systems - reduces software overhead in embedded host controllers |
| Robust protection suite | UVLO (4.1 V), thermal shutdown (170 °C), overcurrent (5–12 ms deglitched), and 6 kV HBM ESD on USB pins - ensures field reliability in consumer and industrial USB ports |
Applications
| USB Host Port Charging | Notebook System S4/S5 Wake |
|---|---|
|
Use Scenario: Desktop motherboard USB 3.0 Type-A port delivering 1.5 A to smartphones during OS suspend (S3) or mechanical off (S5). IC Role / Device Role / Timing Role: USB charging controller and power switch managing D+/D– signature generation, OUT power delivery, and /STATUS-triggered power rail enablement. Use Value: Enables battery top-off during sleep states without CPU involvement, meeting USB Battery Charging Specification 1.2 CDP requirements with <270 μA quiescent current. |
Use Scenario: Notebook platform using USB port to wake system from S4 (hibernate) or S5 (soft-off) when smartphone initiates charging. IC Role / Device Role / Timing Role: Load detection circuit asserting /STATUS upon 650 mA current draw, directly enabling PMIC-controlled 5 V rail and notifying EC via GPIO. Use Value: Eliminates need for dedicated wake controller IC; achieves <200 ms load detect set time and <4.2 s reset window for robust cable insertion/debouncing. |
| Universal Wall Adapter Interface | Multi-Port USB Hub Power Management |
|
Use Scenario: Single-input universal wall charger supporting iPhone (Divider-2A), Samsung (DCP-1.2V), and legacy Android (BC1.2 DCP) devices. IC Role / Device Role / Timing Role: Charging protocol detector generating correct D+/D– voltage signatures (e.g., 1.25 V for DCP-1.2V, short for Shorted Mode) while regulating 2.5 A output. Use Value: Achieves >95% compatibility across global smartphone models without firmware updates; supports 2.5 A continuous output with 73 mΩ RDS(on). |
Use Scenario: 4-port USB 3.0 hub dynamically allocating 5 V power among active downstream devices to avoid overcurrent faults. IC Role / Device Role / Timing Role: Port power manager using /STATUS outputs from four PI5USB2546JZHEX units to coordinate current limits and disable non-active ports via shared I²C-controlled PMIC. Use Value: Prevents upstream overcurrent trip by enforcing per-port load detection and enabling real-time PPM arbitration - critical for bus-powered hubs compliant with USB-IF certification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB charging port controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2546RTER | Single 2.5 A channel, no integrated D+/D– switch; requires external USB signal routing; 1.5 A fixed current limit (non-adjustable) | Lacks hardware-based BC1.2 mode auto-detection; relies on host MCU for mode selection via I²C | Choose when system already uses I²C-controlled power management and external USB signal switches are acceptable |
| IP2721 | Supports USB PD 3.0 + BC1.2, but lacks native YD/T 1591 Shorted Mode; uses QFN-24 package (4 mm × 4 mm) | Requires firmware update for new charging standards; not pin-compatible due to larger footprint and different CTL pin mapping | Prefer for future-proofing with USB-C and PD negotiation, but not drop-in for legacy micro-USB host ports requiring YD/T 1591 compliance |
Compared with TPS2546RTER and IP2721, the PI5USB2546JZHEX delivers fully autonomous BC1.2/YD/T 1591 mode detection, integrated USB 2.0 analog switching, and resistor-programmable current limits - making it optimal for cost-sensitive, firmware-light host ports where micro-USB connector compatibility and regional charging standard coverage are mandatory.
Availability
PI5USB2546JZHEX is available at Aetrix Electronics and suitable for notebook USB host ports, universal wall charging adapters, and multi-port USB 3.0 hubs requiring stable component supply, automotive-grade traceability, and long-term lifecycle continuity.
Supply support for PI5USB2546JZHEX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and integrated circuits, specializing in power management, signal integrity, and protection solutions for consumer, industrial, and computing markets.
The PI5USB2546JZHEX belongs to Diodes' USB Power Delivery and Charging Controller product line, designed specifically for host-side USB port intelligence - enabling BC1.2-compliant charging, S4/S5 wake capability, and robust power switching in space-constrained computing platforms.
FAQ
What charging standards does the PI5USB2546JZHEX support without external firmware?
The PI5USB2546JZHEX natively supports USB Battery Charging Specification 1.2 (CDP and DCP modes), Chinese Telecommunications Standard YD/T 1591-2009 (Shorted Mode), Divider-1A, Divider-2A, and DCP-1.2V modes using only hardware pin configuration (CTL1–CTL3 and ILIM_SEL). No microcontroller or firmware is required to detect or assert these signatures - all mode selection and D+/D– voltage generation are implemented in analog and logic circuitry per the datasheet truth table.
How is load detection used for S4/S5 charging activation?
Load detection is triggered when output current exceeds the rising threshold (e.g., 650 mA with RILIM_LO = 80.6 kΩ), causing the /STATUS pin to assert low. This open-drain signal can directly enable a PMIC-controlled 5 V rail or wake an embedded controller. The 200 ms set time and 3 s reset window ensure reliable response to cable insertion while rejecting transient noise - enabling true "charger-present" detection during S4 (hibernate) and S5 (soft-off) system states without CPU involvement.
Can the PI5USB2546JZHEX be used in USB 3.0 SuperSpeed applications?
Yes - the PI5USB2546JZHEX integrates a high-bandwidth analog switch for USB 2.0 D+/D– lines only, with 2.0 GHz bandwidth, <0.25 ns propagation delay, and <0.2 ns skew, fully preserving USB 2.0 High-Speed (480 Mbps) signal integrity. USB 3.0 SuperSpeed (5 Gbps) lanes are routed separately and unaffected; the device is commonly deployed in USB 3.0 Type-A ports where backward-compatible USB 2.0 charging and data functionality must coexist with SS lane routing.
What is the role of the exposed thermal pad on the ZHD package?
The exposed thermal pad on the 16-pin ZHD (UQFN) package is internally connected to GND and serves two critical functions: (1) it provides a low-thermal-resistance path (<25 °C/W typical) from the die to the PCB copper pour, enabling sustained 2.5 A operation without derating at +85 °C ambient; and (2) it acts as a low-inductance ground return for high-frequency switching noise from the 73-mΩ MOSFET, reducing EMI and improving stability of the 0.1 μF IN decoupling capacitor. PCB layout must connect this pad to a solid GND plane using ≥4 thermal vias.
PI5USB2546JZHEX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 16-WFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 4.5V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- -
- Rds On (Typ):
- 73mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (3x3)
PI5USB2546JZHEX FAQ
1.How can I place an order for PI5USB2546JZHEX through Aetrix?
Please submit a Request for Quotation (RFQ) for PI5USB2546JZHEX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PI5USB2546JZHEX reliable?
The price and inventory of PI5USB2546JZHEX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PI5USB2546JZHEX is usually 5 days.
3.What payment methods are accepted for PI5USB2546JZHEX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PI5USB2546JZHEX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PI5USB2546JZHEX?
PI5USB2546JZHEX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PI5USB2546JZHEX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PI5USB2546JZHEX?
For technical support, including PI5USB2546JZHEX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PI5USB2546JZHEX requirements.
6.How does Aetrix verify that PI5USB2546JZHEX is sourced from the original manufacturer or authorized distributors?
All PI5USB2546JZHEX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PI5USB2546JZHEX meets industry standards.
7.What is the process for return or replacement of PI5USB2546JZHEX?
All PI5USB2546JZHEX units undergo pre-shipment inspection (PSI). If there is an issue with PI5USB2546JZHEX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PI5USB2546JZHEX part is unused and in its original packaging.
Return procedure for PI5USB2546JZHEX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PI5USB2546JZHEX Tags
-
TPS22919DCKR
Texas Instruments
-
MIC2091-1YM5-TR
Microchip Technology
-
MIC2090-1YM5-TR
Microchip Technology
-
TPS22995RZFR
Texas Instruments
-
TPS22975DSGR
Texas Instruments
-
SIP32510DT-T1-GE3
Vishay Siliconix
-
ULN2003D1013TR
STMicroelectronics
-
MIC2005A-1YM5-TR
Microchip Technology
-
MIC2005A-1YM6-TR
Microchip Technology
-
TPS22916BYFPR
Texas Instruments
-
TPS22917DBVR
Texas Instruments
-
ULN2003APWR
Texas Instruments
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
